Bahrains King Hamad bin Isa al-Khalifah ordered the release of some political prisoners on Tuesday, conceding to another opposition demand as the embattled monarchy tries to engage protesters in talks aimed at ending an uprising that has entered its second week. Its unclear how many prisoners will be freed, said government spokeswoman Maysoon Sabkar. But they include some of the 25 Shiite activists on trial for allegedly plotting against the Sunni rulers of the strategic island kingdom, a leading member of Bahrains Shiite opposition, Abdul Jalili Khalil, told a foreign news agency. He called the prisoner release as a good step and a positive gesture. Two of those in the case are being tried in absentia, including opposition leader Hassan Meshaima, who has been in self-exile in London since last year and was expected to return later on Tuesday.